1. Diagnostic and Statistical Manual of Mental Disorders,2000
2. Comorbid disorders associated with tics;Fernández-Álvarez;Rev Neurol.,2002
3. Tourette's syndrome: From behaviour to biology;Singer;Lancet Neurol.,2005
4. Tourette's syndrome in children;Chowdhury;BMJ,2004
5. Jankovic J. Tourette syndrome. Orphanet Encyclopedia. October 2004 Disponible en: http://www.orpha.net/data/patho/ GB/uk-Tourette.pdf